Table 5.
Waveform changes with mean ICP
| Normal (< 18.4 mmHg) mean (SD) |
Elevated (18.4–22.1 mmHg) mean (SD) |
High (> 22.1 mmHg) mean (SD) |
p= (ANOVA) | |
|---|---|---|---|---|
| Peak pressure (mmHg) | 16.23 (2.7) | 22.4 (1.2) | 30.7 (3.2) | < 0.0001 **** |
| Trough pressure (mmHg) | 13.1 (2.2) | 18.0 (0.7) | 24.2 (2.7) | < 0.0001 **** |
| Amplitude (mmHg) | 3.2 (0.8) | 4.4 (1.2) | 6.4 (1.7) | < 0.0001**** |
| Cardiac rate (bpm) | 60.9 (10.0) | 64.0 (9.5) | 70.6 (12.6) | 0.0229* |
SD indicates standard deviation, ANOVA indicates analysis of variance, bpm indicates beats per minute, * indicates p = < 0.05, **** indicates p = < 0.0001